According to the graph you can quickly see when it will precipitate (green colors) and when to cover the garden plants (the red line is temperature and the blue dotted line is 32°F -- freezing). The best thing is, you can get this for any location in the USA. Simply go to this website: http://preview.weather.gov/edd/ and click your location on the map and this graph will appear. This website works best on a desktop computer or tablet, not a phone.
We hope you find this tool useful for your syrup and garden planning activities!!